Thursday, April 2, 2020

An interesting hand at matchpoints

A hand came up in a BBO speedball which caused a dent in an otherwise decent session. First let's look at it from my (declarer's) point of view.


The opening lead is D9. There's really very little time in a speedball to ask (or consult) about lead conventions. East played the J and I won with the Ace. What do you think of your chances in this contract? Since West didn't lead a heart (presumably, he has the ace), we have a shot at making 12 tricks. Partner did the right thing however, in signing off in 4S with that wasted HK.

Still, that diamond lead is a bit awkward. My only entry to the dummy now is by ruffing the small diamond. But I can't now draw all the trumps before taking the club finesse. So, I took two rounds of trump and ruffed the diamond. Now, I took the club finesse. Good news: it won. Bad news: the trick was ruffed by West. Now, I had to lose to the CK too and just made my game. This was worth a paltry 30% of the board.

It turns out that the way to make five (or more) on this hand is to be either a) lucky; b) forgetful (or insanely optimistic); c) brilliant; d) playing double-dummy. Needless to say, I was none of those. With 128 tables in the event, you can imagine that there were all sorts of results, but the vast majority of the NS pairs were in 4S.


At one table which also received a diamond lead, declarer didn't worry about that losing diamond, drew trumps, took the club finesse a couple of times and conceded two red cards. At many other tables, declarer was fortunate to receive the lead of HA. Now, there's no excuse for not making six (although many such declarers still only made five).

I mentioned that you can make 5 playing double-dummy. How so? Well, since we know we have to lose a heart anyway, how about playing a heart up after drawing two rounds of trump (or playing the HK after ruffing the diamond)? Now, South has no choice but to draw any remaining trumps and try to drop a singleton CK. It won't work but at least he doesn't suffer a ruff.

Interesting hand.

Friday, March 20, 2020

Count

My favorite partner and I decided to support our local clubs with the ACBL "Black Point" game on BBO. Entry is $5 each (many clubs in the US only charge $5 per pair, although in the Boston area it's usually $10-12). It takes 2 full hours to play 18 boards so it's excruciatingly slow.

But a couple of things came up that were perhaps worth the entry fee.


While, I've known the mechanism (and name) of "Last train" for a long time, it had never actually come up before in the heat of battle--at least not knowingly. Here it was in the flesh. We got to a decent 6S contract (made even more decent by getting a club lead).

The second thing that came up is that it turns out that we don't play the same count signals (and haven't done for several years, it seems).  We play UDCA, as I do with almost all of my partners, but once a suit has been broken, we play present count, right? But do we play present count upside down or right-way-up? Turns out that all the "good" players play it right-side-up. What about you?


Friday, January 3, 2020

The importance of being earnest

The importance of being earnest in your discards cannot be over-emphasized. The title of course comes from the play of that name by Oscar Wilde. But the point I wish to make is that, when dummy (or declarer) has a long running suit, the defenders have to announce the suits they will guard and stick to that plan earnestly.

Here's a hand that came up at the club (matchpoints):
At my table, I opened 2NT in second seat and partner raised to 3NT. Clearly, with the insight of double-dummy, North should lead out his hearts from top to bottom and achieve a +100 score.

But let's say North figures that establishing his longest and strongest suit (with two side entries) is the proper thing to do and leads a low spade. This is what happened at several tables and most of us took all of the tricks for 720.

But it shouldn't have happened that way. There are only eleven top tricks and, providing that the defenders don't get mixed up, there's actually no squeeze, whether single, double or triple.

North must realize that the most his partner can hold is two or three points. Unless West was Zach Grossack or Harrison Luba, for example, in which case South could easily hold four or five points ;)

Let's say that declarer calls for dummy's king which wins and then crosses to the CA. What can South hold? The club king? Seems unlikely because declarer might have cut himself off from those clubs by taking away dummy's entry. By the way, do you see how important it is (usually) to play the highest card from hidden equals? It causes the opponents to be less than 100% sure where the lower equal (the king in this case) actually is.

So, probably declarer has the king. Then, what useful card could South possibly hold? The heart queen? Or maybe he has only the jack. Either way, North can immediately see that the one suit he must guard is diamonds. He will have to make six discards on the clubs: when the clubs are finished, he will have five cards left: three diamonds and two others. But, unless he keeps a small heart and/or a small spade, he can be end-played into leading away from his queen of diamonds. So, he must choose: keep a high heart or a high spade. Which card is South more likely to hold: ST or HQ? at this point, it's a bit of a toss-up. But North doesn't have to decide just yet.

At this point, proper technique by declarer against expert defenders would be to cash the two top diamonds and hope for a squeeze to materialize. But against defenders who discard more or less randomly, it's probably better to just run the clubs (which is what I did).

So, when declarer plays the CK, North must immediately signal which suit he will guard or, if that's impossible, to start showing which suit(s) he will not guard. Regardless of the carding scheme by defenders, North has an appropriate diamond to discard. The other players follow suit. On the small club at trick four, North will have to play a neutral spade (the five, assuming that he started with the three). South now must decide which suit he will guard. It doesn't matter which he chooses on this hand, as long as he sticks with it. Let's say that he discards an encouraging heart. Now, North can throw that other small spade, thus confirming that he will guard diamonds and spades. The important point is that, although it's possible that the defenders may already have made an error, they must stick with the plan. In this scenario, one error might cost an extra trick. But switching plans will likely cost two tricks.

North will immediately throw the two high hearts and the SQ (implying the J). South will pitch all of his diamonds and two more hearts. Although it takes guts for North to jettison two high hearts, he should remember that when he has most of his side's assets, the little exit cards can be as precious as the high cards.

Declarer is helpless. He will end up losing a diamond and the last spade. And all because N/S were careful to formulate a plan and stick with it.


Tuesday, December 31, 2019

Examples of doubling: good and bad

Starting with the bad. This hand was discussed on BridgeWinners. You hold ♠K862 ♥KQ4 QJ963 7 as dealer, all white, IMPs. Playing Precision, you open 1♦ and partner responds 1♥. RHO now doubles and you redouble to show three cards in hearts. LHO bids 2 ♣ and this is passed around to you.

Are you thinking of doubling?  I believe that there are three reasons that you should not double here:
  • You have a minimum hand; partner has shown a minimum response (theoretically, you should only respond to 1♦ with 8 hcp but that's very old fashioned so, let's assume partner has at least 6 points). This is not necessarily your hand so making a cooperative double here puts partner under a lot of pressure.
  • You have only a singleton club; if partner chooses to pass for penalties, the opponents will be playing at the two-level with an eight-card fit--that's anti-law.
  • You have a seven-card heart fit since partner would have bid 2♥ if he had five and there's no reason to suppose that you have an eight-card diamond fit (you might but the way to find out is to bid 2♦ and see if partner lets you play it there).
The bottom line here is that this is the kind of hand that gets cooperative doubles a bad name. At the table, this hand doubled, partner left it in with a 9-count including KQ92 of clubs and the ace, third of spades. The contract made for -180.

OK, now let's go to the good example hand. This occurred in a daytime game today, playing with my favorite partner. Everyone is vulnerable (matchpoints) and LHO, the dealer passes. Kim bids 1♠ and RHO, a good "B" player, overcalls 2♦. Our hand is 875 KJT54 KQ9 J4. Some people might start with 2♥ but, in a competitive auction, I like to show support right away. I therefore bid 2♠. LHO and partner passed and RHO bid 3♦. Now, I doubled. The play was straightforward and we ended up with 500, for all the matchpoints.

So, why is this a penalty double rather than a cooperative (takeout-oriented) double? I explain this in Update on Cooperative Doubles. But, basically, I have made a limited bid (2♠) and partner has nothing extra because she passed. It's impossible that we have sufficient strength for a cooperative double (see the first bullet regarding the bad example above). Therefore, it must be a penalty double.

Note that RHO did nothing too outlandish. He had 16 high card points and a fairly good six-card diamond suit (missing the KQ, obviously, and the ten which his partner had along with two small). He was just unlucky that his partner had only two queens that were not much help.

Sunday, December 8, 2019

Lead-directing doubles

How good should your suit be to make a lead-directing double of an artificial bid? Let's think about what we're trying to achieve when we make one.

What we're trying to achieve is to get our defense off to a better start than partner might come up with on his own. The danger of course is that partner might have a very good lead of his own (Q from QJTxx, for example) which he will eschew in order to lead your suit. On other occasions, partner has no good lead and will be thrilled to get your suggestion, even if it turns out not to be the killer lead. At least, it will have been neutral.

So, in order to ensure that your suggested lead is at least neutral, apply this rule: can you guarantee that you will win at least one of the first two tricks of the suit?

I'm posing this question in a no-trump context. Against a suit contract, the second or even the first lead of a suit might get ruffed and you might have simply accomplished setting up a trick which can never be cashed. But you won't have lost anything.

So, what honor holdings would qualify for a lead-directing double?

  • AK? Obviously!
  • KQ? Yes: whoever has the ace you will establish one trick.
  • AQ? Yes: if dummy happens to have the K, you'll win two tricks.
  • KJT? I don't think so.
  • KJ? No, no, no!!
  • Anything else? Don't even think about it.


What's about KJT? You will build a trick with this holding even if declarer has ace and queen. But you may never get to cash it. Is it really worth risking the possibility that partner has a better lead? Maybe but, on balance, I think not.

What about accompanying length? How about making a lead-directing double of an artificial bid with AKx? What could go wrong? We almost definitely will get to cash two tricks. Maybe partner has a doubleton and can ruff the third round! There's just one little problem. The opponents, who nearly always have more high-card points than your side, might just decide to redouble!

How about AKxxx? The danger is still there (partner may have a void) but I think that you'd have to get very unlucky to find them redoubling and making. Plus, you will have some company at least.

Thursday, August 8, 2019

Thinking ahead

In a recent Daylong IMP tournament on BBO, I picked up the following hand: ♠AKT742 ♥AQJ62 ♦void ♣KT. We were vulnerable vs. not vulnerable and my robot partner dealt and opened 1♣. RHO bid ♦D. What's your bid going to be?

You've got both majors, so how about a negative double? Predictably, LHO now bids 4♦ and when it comes back to you, you can offer a choice of majors by bidding 4♥. Did you land on your feet? Hardly! You can surely make slam and possibly a grand slam. How are you getting there when partner passes 4♥? So, you're kind of obliged to bid 6♥ now.

In other words, just thinking one move ahead in the auction tells you right away that double is a bad idea. Actually, it could be even worse. Suppose partner's hand is ♠xx ♥xxx ♦AQx ♣AKxxx? He might even pass 3♦X and you might score only 500: not even compensation for game.

I've seen some abuses of negative doubles in my time, but I think this one takes the cake. The primary purpose of a negative double is a bit like Stayman: opposite a relatively balanced opener, let's see if we can find a 4-4 fit. Opener is reluctant to bid a three-card suit opposite a negative double. How many cards in the majors do you really expect partner to have here?

At my table, I bid 3♠ over 3♦ and, after my LHO predictably raised to 4♦, my partner was able to raise me to 4♠ with his Q96 holding. Roman keycard Blackwood did the rest: I found out that we had all six key cards (including the ♦A in case I wanted to bid 7NT) and I didn't really have to think too long and hard to bid the grand. But which grand? If it had been MPs, I would have probably bid 7NT. But at IMPs, you should maximize the chances of making by using your nine (hopefully) trumps.

Here's the whole hand:


The contract was lay-down. I scored six spades, five hearts, two clubs, a diamond ruff, and the ♦A. I'm kidding as that adds up to 15 so I never scored a diamond or the fifth heart.

There were five others in 7♠ (we won 12.5 IMPs on this hand), ten in 6♠, ten in a spade game, and one unfortunate fellow in 7♣ down six. To say that he (or she) was hoist by their own petard would be an understatement: South never bid either of his majors: he began with a negative double then, after his partner doubled 4♦, he chose 5♦ (which the robots interpret as showing club support).

Monday, July 8, 2019

How to lose 50 IMPs in a 12-board Individual

Yes, you read that correctly. Sometimes when I'm feeling particularly masochistic, I enter one of the ACBL individual tournaments. The denizens of this particular enclave are all regulars. I have notes on many of the players. Of course one's result is almost entirely the luck of the draw. It's seldom that I make an error so egregious that it significantly affects my score as the standard of play is so bad that you really have to go out of your way to lose a board all on your own. So, basically my score is always a combination of my so-called partners' efforts and those of my opponents.

Today's was exceptional. Board one was uneventful. The opponents bid and made a game. Lose one IMP.  The second board was where the (un) fun started. My CHO (partner) was in 3NT:


As you can see (by pressing Next), declarer won the opening lead in dummy and proceeded to cash the CA just in case it "went away." Then they figured that since they were there for the last time, it might be a good idea to take a finesse. There was only one suit with a finessing position and that was hearts. So, despite the fact that they could ill-afford to lose the lead before setting up the diamonds, they finessed the HT. This had approximately a 25% chance of success. Partner was unlucky. From there on, there simply wasn't time to get the diamonds going. The result? Down 2 instead of making 6. But it was IMPs, so the three overtricks we didn't make were just gravy (or lack thereof).

The next, however, surpassed even this.


The funny thing is that, after the hand, CHO messaged me to say "look at the other tables to see how you should bid this hand." Some had opened the West hand (not terrible), some Norths didn't open 2D. Of the Wests where the first round of bidding was the same, some bid only 2H (but their partners still got them to game). One player bid 4H (obviously, if I'd known anything about CHO I would have done the same). But most, like me, bid 3H. No other partnership got the magic +230, nor yet 1430. That was another 10 IMPs.

The next hand was interesting. Neither I nor my CHO did anything terrible:


RHO got a bit lucky that North didn't have four clubs to the J as he might have done. If he doesn't cash his clubs out, we can easily come to 10 tricks. You can blame me for not bidding 3NT instead of 1S. But, seriously, although this rated to be a not uncommon result, it was in fact unique. Lose another 8.

I managed to staunch the flow a bit over the next three boards, for only another 7 IMPs. The third one of these offered 12 tricks to the opponents, but nobody bid the slam.


Most Wests opened the bidding with 4D, some 3D and at least one opened 1D. In every one of these cases, East bid his hearts and 4H was made. There is an argument for 1D but I think it's better to get the hand off one's chest right away. 8 IMPs.

The next board was an unmitigated disaster and I was significantly responsible for it.


Believing my partner to have no defense against 5D (he passed in a forcing pass situation), I decided to try for 5H. I took a while to decide whether to run the HT and cost us an additional 4.5 IMPs (over the 7 we were destined for) when I changed my mind and went up with the ace. Of course, most of the players in these events have no concept of a forcing pass, so it was silly to take such an inference.

Here is the final exhibit:


Watching the play as dummy, I was praying for my partner to claim before anything bad happened. My prayers went unanswered and he decided to take a practice finesse at trick 8. Lose another 9.

At this point, I was an incredible 62.5 IMPs under water on only ten boards! I did manage to get some back on the last board, but surely this is a record. I'm hoping that someone will nominate me for the Guiness Book of Records.